County annual report · FIPS 49027
2018 Millard County, UT Power Outage Report
In 2018, customers in Millard County, UT went without power for an average of 2.9 hours, a total of 13K customer-hours (Utah average 1.9 hours). That ranks 11th worst of 26 Utah counties and 1537th of 2,798 nationally.
Compared with UT, the US and 2017
Coverage line is EAGLE-I's share of Utah customers tracked each year.
Biggest outages in Millard County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 20, 2018 21:00 | August 21, 2018 00:00 | 3h | 753 | 1,277 |
| 2 | April 16, 2018 20:45 | April 18, 2018 02:30 | 1d 5h | 463 | 4,221 |
| 3 | March 1, 2018 16:45 | March 1, 2018 21:45 | 5h | 347 | 355 |
| 4 | August 9, 2018 13:45 | August 9, 2018 17:15 | 3h 30m | 233 | 466 |
| 5 | October 29, 2018 15:15 | October 29, 2018 16:15 | 1h | 230 | 173 |
| 6 | April 7, 2018 22:15 | April 8, 2018 02:00 | 3h 45m | 225 | 607 |
| 7 | April 9, 2018 13:45 | April 9, 2018 18:30 | 4h 45m | 208 | 61 |
| 8 | April 14, 2018 05:15 | April 14, 2018 07:15 | 2h | 191 | 254 |
| 9 | November 7, 2018 16:15 | November 7, 2018 17:45 | 1h 30m | 158 | 237 |
| 10 | August 8, 2018 22:30 | August 9, 2018 01:30 | 3h | 131 | 297 |
Outage episodes by size in 2018: 12 reached 100+ customers, 0 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Millard County reported on EIA Form 861 for 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| PacifiCorp | 2018 | 3.2 hrs | 1.62 | 2.0 hrs | 1.25 |
| Dixie Escalante R E A, Inc | 2018 | 44 min | 0.65 | 44 min | 0.65 |
| Mt Wheeler Power, Inc | - | - | - | - | - |
| Fillmore City Corporation | - | - | - | - | - |
| Kanosh Town Corporation | - | - | - | - | - |
| Meadow Town Corporation | - | - | - | - | - |
| Town of Holden - (UT) | - | - | - | - | - |
| Town of Oak City - (UT) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 80% of Utah's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,388 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Millard County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Millard County, UT annual power outage report, 2018, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2018/utah/millard-county